I noticed the same thing on http://www.ValleyViewChiro.com today. My logo image was gone. I did realize that I had copied the header.php into my child theme because I needed to load some custom code into the <body> tag for Google Adwords custom phone numbers.
I am guessing I should just trash the child header.php file. Where would be the best place to put that code to get it into the <body> tag.
As always, thanks!